Natrol Carb Intercept 3 contains Phase 2 Carb Controller Complex with White Kidney Bean Extract. Natrol Carb Intercept 3 contains clinically tested ingredients that helps inhibit the enzyme responsible for digesting starch found in many foods such as bread, cereal, rice and pasta. It also includes Green Tea and Caffeine which help rev up your metabolism and support calorie burning. Finally, it contains chromium to help the body metabolize fats for energy.*